fix(hopper): diagnose MCP provider failures with stage, state, and request context (#1044)

* fix(hopper): diagnose MCP provider failures with stage, state, and request context

* fix(hopper): retain health at the actual provider lifecycle boundary

* test(hopper): distinguish socket loss from later observed process exit

* test(hopper): cover observed exit separately from socket-first replies

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Co-authored-by: N0zoM1z0 <1705004398@qq.com>

src/application/binary/BinarySession.ts

@@ -339,6 +339,8 @@ export class BinarySession
         this.#active?.client.runtimeLineageSnapshots?.() ?? [],
       requestActivitySnapshots:
         this.#active?.client.requestActivitySnapshots?.() ?? [],
+      providerOperationHealth:
+        this.#active?.client.operationHealthSnapshot?.() ?? null,
     });
   }